CN210478318U

CN210478318U - Traction mechanism for semitrailer product

Info

Publication number: CN210478318U
Application number: CN201921312692.8U
Authority: CN
Inventors: 艾阳东
Original assignee: Dazhou Huachuan Vehicle Manufacturing Co Ltd
Current assignee: Dazhou Huachuan Vehicle Manufacturing Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-08
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a traction mechanism for a semitrailer product, which comprises a traction seat, a connecting component and a traction rod, wherein the connecting component comprises a sleeve, a connecting shaft, a bearing A and a limiting shaft, the connecting shaft is fixed on the traction seat, and a through hole A is arranged on the connecting shaft; the bearing A is sleeved on the connecting shaft; the outer wall of the sleeve is connected with the traction rod, the traction rod is sleeved on the connecting shaft, an arc-shaped groove is formed in the traction rod, and the bottom of the arc-shaped groove is communicated with the central hole of the sleeve; the two ends of the limiting shaft are provided with friction reducing assemblies coaxial with the limiting shaft, each friction reducing assembly comprises an end shaft and a bearing B, the bearing B is sleeved on the end shaft, the limiting shaft is matched with the through hole A, and the end shafts at the two ends of the limiting shaft respectively penetrate through an arc-shaped groove. The utility model discloses the cooperation positioning gap of sleeve rather than inside part has been reduced to reduce the sleeve and born and come from the inside frictional force of drive mechanism, improved telescopic operational environment, and improved the utility model discloses a whole quality.

Description

Traction mechanism for semitrailer product

Technical Field

The utility model relates to a semitrailer field, concretely relates to a drive mechanism for semitrailer product.

Background

A semitrailer is a trailer whose axle is positioned behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and which is equipped with a coupling device that transmits horizontal and vertical forces to the tractor. Semitrailers are generally three-axle semitrailers, and the types of semitrailers are divided into eleven-meter-bin-column semitrailers, thirteen-meter-bin semitrailers, low-bed semitrailers and the like. Is a heavy transport vehicle connected with a semitrailer head through a towing pin.

The tractor of a semitrailer is the component used to connect the tractor and trailer.

The existing traction mechanism adopts a standing shaft hole matching mode to carry out hinged connection, in the connection mode, for convenience of installation, the gap between a shaft and a hole is large, a limiting component for preventing a sleeve from ascending is required to be arranged at the top of the connecting mode, the structure of the limiting component is complex, the friction force between the limiting component and the sleeve is large, and the long-time normal work of the traction mechanism is not facilitated.

Disclosure of Invention

The utility model aims to provide a: the utility model provides a traction mechanism for semitrailer product, solved among the current traction mechanism for the convenience of installation, the clearance between axle, the hole is great, and the sleeve bears comes from the inside frictional force of traction mechanism more.

The utility model adopts the technical scheme as follows:

the traction mechanism for the semi-trailer product comprises a traction seat and a traction rod connected with the traction seat through a connecting assembly, wherein the connecting assembly comprises a sleeve, a connecting shaft, a bearing A and a limiting shaft detachably fixed on the connecting shaft,

the connecting shaft is vertically fixed on the upper surface of the traction seat, and a radial through hole A is formed in the connecting shaft;

the bearing A is sleeved on the connecting shaft, and the inner ring of the bearing A is in interference fit with the connecting shaft;

the outer wall of the sleeve is connected with the traction rod, the axis of the sleeve is overlapped with that of the connecting shaft and is sleeved on the connecting shaft, the inner wall of the sleeve is in transition fit with the outer ring of the bearing A, an arc-shaped groove is formed in the inner wall of the sleeve along the circumferential direction of the outer ring, the bottom of the arc-shaped groove is communicated with the central hole of the sleeve, and the two arc-shaped grooves are symmetrical along the axis of the sleeve;

the diameter of spacing axle is unanimous with through-hole A's diameter, all is provided with at its both ends with the coaxial friction subassembly that falls of spacing axle, it includes that the diameter is less than spacing axle diameter's dead axle and external diameter and the unanimous bearing B of spacing axle's diameter to fall the friction subassembly, the axis of the spacing axle of dead axle is coaxial, bearing B cover is established on the dead axle to with dead axle interference fit, spacing axle and through-hole A cooperation, the dead axle at its both ends respectively passes an arc wall respectively, and has just the cell wall contact of lateral wall and arc wall down on the bearing B, just with the downside cell wall contact of arc wall.

Preferably, the central angle subtended by the arc-shaped grooves is 120 °

The sleeve is sleeved on the connecting shaft through the bearing, so that the coaxiality between the sleeve and the connecting shaft is improved, the gap between the sleeve and the connecting shaft is reduced, the noise generated by vibration is eliminated, and the friction force between the sleeve and the connecting shaft is also reduced; meanwhile, the bearing B is adopted to enable the limiting part of the sleeve to be in contact with the sleeve, and the friction force between the limiting part and the sleeve is reduced.

In the operation process, the sleeve can realize low friction and smooth relative rotation with the connecting shaft through the bearing A; meanwhile, when the sleeve rotates, the bearing B is driven to rotate, and then low friction force and smooth relative rotation between the sleeve and the limiting shaft are achieved through the bearing B.

And dismantle as needs the utility model discloses the time, eliminate earlier that the dismantlement between spacing axle and the connecting axle is connected, withdraw from spacing axle from through-hole A again, lie in bearing B, the end shaft of spacing axle one end and withdraw from through-hole A in proper order to make the sleeve lose vertical spacing, then shift up the sleeve, thereby take off it from the connecting axle.

To sum up, the utility model discloses the cooperation positioning gap of sleeve rather than inside part has been reduced to reduce the sleeve and born and come from the inside frictional force of drive mechanism, improved telescopic operational environment, and improved the utility model discloses an overall quality.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a traction mechanism for semitrailer product, the sleeve is established on the connecting axle through the bearing housing, has not only improved the axiality between sleeve and the connecting axle, has reduced the clearance between it, eliminates the noise that the vibration produced, has still reduced the frictional force between sleeve and the connecting axle; meanwhile, the bearing B is adopted to enable the limiting part of the sleeve to be in contact with the sleeve, so that the friction force between the limiting part and the sleeve is reduced;

2. the utility model is used for the traction mechanism of the semitrailer product, and in the operation process, the sleeve can realize the relative rotation with low friction and smoothness between the sleeve and the connecting shaft through the bearing A; meanwhile, when the sleeve rotates, the bearing B is driven to rotate, and then low friction force and smooth relative rotation between the sleeve and the limiting shaft are achieved through the bearing B.

3. The utility model is used for the drive mechanism of semitrailer product, in the operation process, bearing C's setting has reduced the frictional force between sleeve and the traction seat, has further improved telescopic operational environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a schematic view of the longitudinal cross-section structure of the present invention;

FIG. 5 is a schematic view of the construction of the sleeve;

FIG. 6 is a schematic cross-sectional view of the sleeve;

FIG. 7 is a schematic view of the construction of the connecting shaft;

fig. 8 is a schematic structural view of the stopper shaft.

Reference numerals in the drawings indicate:

the device comprises a traction seat 1, a traction rod 2, a sleeve 3, a connecting shaft 4, a bearing A5, a through hole A6, an arc-shaped groove 7, a limiting shaft 8, an end shaft 9, a bearing B10, a spring 11, a connecting lug 12, a support ring 13 and a bearing C14.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 8.

Example 1

As shown in fig. 1-8, the traction mechanism for semitrailer products of the present invention comprises a traction base 1 and a traction rod 2 connected with the traction base 1 through a connecting assembly, wherein the connecting assembly comprises a sleeve 3, a connecting shaft 4, a bearing a5 and a spacing shaft 8 detachably fixed on the connecting shaft 4,

the connecting shaft 4 is vertically fixed on the upper surface of the traction seat 1, and a radial through hole A6 is formed in the connecting shaft 4;

the bearing A5 is sleeved on the connecting shaft 4, and the inner ring of the bearing A5 is in interference fit with the connecting shaft 4;

the outer wall of the sleeve 3 is connected with the traction rod 2, the axis of the sleeve is superposed with the axis of the connecting shaft 4 and is sleeved on the connecting shaft 4, the inner wall of the sleeve is in transition fit with the outer ring of the bearing A5, an arc-shaped groove 7 is circumferentially arranged on the inner wall of the sleeve, the bottom of the arc-shaped groove 7 is communicated with the central hole of the sleeve 3, and the two arc-shaped grooves 7 are centrally symmetrical along the axis of the sleeve 3;

the diameter of spacing axle 8 is unanimous with through-hole A6's diameter, all is provided with at its both ends with the coaxial subassembly that rubs that falls of spacing axle 8, it includes that the diameter is less than the end axle 9 of spacing axle 8 diameter and the unanimous bearing B10 of external diameter and spacing axle 8's diameter to fall the subassembly, the axis of the spacing axle 8 of axis of end axle 9 is coaxial, bearing B10 cover is established on end axle 9 to with end axle 9 interference fit, spacing axle 8 and through-hole A6 cooperation, the end axle 9 at its both ends respectively passes an arc wall 7, and has on the bearing B10 and only down the cell wall contact of lateral wall and arc wall 7, and with the downside cell wall contact of arc wall 7.

Preferably, the arc-shaped slot 7 subtends a central angle of 120 °.

The sleeve is sleeved on the connecting shaft 4 through the bearing, so that the coaxiality between the sleeve and the connecting shaft 4 is improved, the gap between the sleeve and the connecting shaft 4 is reduced, the noise generated by vibration is eliminated, and the friction force between the sleeve and the connecting shaft 4 is also reduced; meanwhile, the bearing B10 is adopted to enable the limiting part of the sleeve to be in contact with the sleeve, and the friction force between the limiting part and the sleeve is reduced.

In the operation process, the sleeve can realize low friction and smooth relative rotation with the connecting shaft through the bearing A; meanwhile, when the sleeve rotates, the bearing B is driven to rotate, and then the low-friction and smooth relative rotation between the sleeve and the limiting shaft 8 is realized through the bearing B.

And dismantle as needs the utility model discloses the time, eliminate earlier that the dismantlement between spacing axle 8 and the connecting axle 4 is connected, withdraw from spacing axle 8 from through-hole A again, lie in bearing B, the end shaft of 8 one ends of spacing axle and withdraw from through-hole A in proper order to make the sleeve lose vertical spacing, shift up the sleeve then, thereby take off it from the connecting axle.

Example 2

In the present embodiment, the stopper shaft 8 is detachably fixed to the connecting shaft 4.

The first mode of fixing the limit shaft 8 on the connecting shaft 4 in a detachable manner is as follows: the limiting shaft 8 is in threaded connection with the through hole A6.

And dismantle as needs the utility model discloses the time, rotate spacing axle 8 earlier to make spacing axle 8 withdraw from through-hole A, thereby eliminate the dismantlement between spacing axle 8 and the connecting axle 4 and be connected.

Example 3

The mode two that spacing axle 8's dismantlement formula is fixed on connecting axle 4 is: spacing axle 8 is fixed on connecting axle 4 through disassembly body, disassembly body includes round hook type cylinder spiral extension spring 11 and engaging lug 12, engaging lug 12 is fixed on traction seat 1, is provided with the through-hole on it, all is provided with the through-hole on end shaft 9, and disassembly body has two to along connecting axle 4's axis central symmetry, and engaging lug 12 respectively is located an end shaft 9's below, the round hook at spring 11 both ends is hung respectively and is established on engaging lug 12 and end shaft 9.

And dismantle as needs the utility model discloses the time, take off the spring from end axle 9 and engaging lug earlier, spacing axle 8 loses the axial spacing, then so that spacing axle 8 withdraws from through-hole A to the dismantlement between eliminating spacing axle 8 and the connecting axle 4 is connected.

Example 4

In this embodiment, the working condition of the sleeve is further improved based on the above embodiment.

As shown in fig. 4, in the utility model, the support ring 13 has been cup jointed on the connecting axle 4, the bottom and the traction base 1 of support ring 13 are connected, and the cover is equipped with bearing C14 in the outside of support ring 13, bearing C14's inner circle and support ring 13 interference fit, and have on the bearing C14 and only have the top of outer lane and sleeve 3's bottom contact.

The arrangement of the bearing C reduces the friction force between the sleeve and the traction seat, and further improves the working environment of the sleeve.

Example 5

In the utility model, the traction seat, the connecting lug, the connecting shaft and the supporting ring are integrally formed; the sleeve and the traction rod are integrally formed.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A drive mechanism for semitrailer product, including traction seat (1) and traction lever (2) of being connected through coupling assembling and traction seat (1), its characterized in that: the connecting component comprises a sleeve (3), a connecting shaft (4), a bearing A (5) and a limit shaft (8) detachably fixed on the connecting shaft (4), wherein,

the connecting shaft (4) is vertically fixed on the upper surface of the traction seat (1), and a radial through hole A (6) is formed in the connecting shaft (4);

the bearing A (5) is sleeved on the connecting shaft (4), and the inner ring of the bearing A is in interference fit with the connecting shaft (4);

the outer wall of the sleeve (3) is connected with the traction rod (2), the axis of the sleeve coincides with the axis of the connecting shaft (4), the sleeve is sleeved on the connecting shaft (4), the inner wall of the sleeve is in transition fit with the outer ring of the bearing A (5), an arc-shaped groove (7) is formed in the sleeve along the circumferential direction, the bottom of the arc-shaped groove (7) is communicated with a central hole of the sleeve (3), and the two arc-shaped grooves (7) are centrosymmetric along the axis of the sleeve (3);

the diameter of spacing axle (8) is unanimous with the diameter of through-hole A (6), all is provided with at its both ends with spacing axle (8) coaxial friction subassembly that falls, it includes that the diameter is less than end shaft (9) and the bearing B (10) that the external diameter is unanimous with the diameter of spacing axle (8) to fall the friction subassembly, the axis of the spacing axle of axis (8) of end shaft (9) is coaxial, bearing B (10) cover is established on end shaft (9) to with end shaft (9) interference fit, spacing axle (8) and through-hole A (6) cooperation, end shaft (9) at its both ends respectively pass an arc wall (7), and have on bearing B (10) and only down the cell wall contact of lateral wall and arc wall (7), and contact with the downside of arc wall (7).

2. A towing attachment for semi-trailer products according to claim 1, characterised in that: the limiting shaft (8) is in threaded connection with the through hole A (6).

3. A towing attachment for semi-trailer products according to claim 1, characterised in that: spacing axle (8) are fixed on connecting axle (4) through disassembly body, disassembly body includes round hook type cylinder spiral extension spring (11) and engaging lug (12), engaging lug (12) are fixed on traction seat (1), are provided with the through-hole on it, all are provided with the through-hole on end axle (9), and disassembly body has two to along the axis central symmetry of connecting axle (4), and engaging lug (12) respectively everywhere be located the below of an end axle (9), the round hook at spring (11) both ends is hung respectively and is established on engaging lug (12) and end axle (9).

4. A towing attachment for semi-trailer products according to claim 1, characterised in that: the connecting shaft (4) is sleeved with a support ring (13), the bottom of the support ring (13) is connected with the traction seat (1), a bearing C (14) is sleeved on the outer side of the support ring (13), the inner ring of the bearing C (14) is in interference fit with the support ring (13), and the top of the outer ring of the bearing C (14) is in contact with the bottom end of the sleeve (3).

5. A towing attachment for semi-trailer products according to any one of claims 1 to 4, characterised in that: the central angle subtended by the arc-shaped grooves (7) is 120 degrees.